Shears



T. J. FEGLEYWAND G. o. LEOPOLD..

SHEARS.

APPLICATION FILEUAUG. 19. 1919. n y LSQSEU' Patented June 89 1920., l vz SHEETS-'SHEET' 1.

fp i F- ,Q .-V *l l 20 n T. 1. FEQLEY AND G. o. LEOPOLD.

SHEARS APPLICA'l-IOIJ FILED AUG. 19, 1919.

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ED STATES enterar ortica.

THOMAS J. FEGLEY AND GEORGE O.Y LEOPOLD, 0F PHILADELPHIA, PENNSYLVANIA,ASSIGNORS TO NORTH BROS MFG CO., OF PHILADELPHIA, PENNSYLVANIA, A

CORPORATION OF PENNSYLVANIA.

SHEARS.

Application filed August 19, 1919.

To all whom it may concern.'

Be it known that we, THOMAS J. FnoLuv and GEORGE O. LEOPOLD, citizens ofthe United States, and residents of Philadelphia, county ofPhiladelphia, State of Pennsylvania, have invented certain improvementsin Shears, of which the following is a specification.

Our invention relates to improvements in shears for cuttingcomparatively heavy materials and articles diihcult to cut under ordinary conditions.

@ne object of our invention is to provide a shear with a straight blade,which will make a shear cut and which will be powerful enough to cutthrough comparatively heavy materials.

A further object of the invention is to provide means whereby not only ashear cut will be made, but also a drawing movement will be combinedwith it so as to hold the article being cut against an abutment.

ln the accompanying drawings:

Figure 1 is a side view Of our improved shears in the elevated position;

Fig. 2 is a plan view;

Fig. 3 is an end view;

Fig. 4f is a sectional view on the line le-4, Fig. 1,

Fig. 5 is a. detached perspective view of the gear wheel; and

Fig. 6 is a side view, showing the blade in its lowest position aftercutting through the material.

1 is the base consisting of an angle plate having an integral member 2to which is attached the lower blade 3 by screws el. The blade rests ona rib 32 projecting from the base so as to relieve the screws fromstrain. The blade 3 can be adjusted laterally by set screws 5.Projecting at the rear of the base is an overhanging arm 6 having abearing 7 for the shaft S, which is enlarged, as at 9, to form acomparatively wide bearing surface for the movable portion 10 of theshears. Attached to this movable portion is a straight blade 11. Theportion 10 has a slot 1Q, Vand on the lower wall of this slot is rack 13with which meshes the teeth 14 of a gear wheel 15 having an enlargedflange 16, which forms the outer bearing or guide e@ of the movableportion 10 of the shears. A transverse key 17 passes through the shaftand is adapted to a slot 18 in the gear so that Specification of LettersPatent.

Patented June 8, 1920.

serial no. 318,473.

the gear must turn with the shaft. On the opposite end of the shaft is ahandle 19, which may be of any length desired. The hub 2O of this handleis split, as shown, so that it can be clamped to the shaft by a bolt 21.There is also a key 22, which locks the shaft to the hub. In the end ofthe shaft- S is a' threaded opening in which is adapted a bolt 23.Between this bolt and the hub 2O of the handle is a washer 2t, whichholds the hub so as to prevent it from moving longitudinally on theshaft. Between the hub and the bearing is a friction washer 31 ofleather, or other suitable material. By this construction, the hub ofthe handle is rigidly secured to the shaft, as is also the gear wheel15. rEhe movable portion 10 of the shears is confined between lthe parts9 and 16 so that it will be held firmly through the cutting operation.At one end of the movable portion 1() of the shears is a slot 26, whichterminates in a right-angled portion 27, and j nojecting from theoverhanging arm G is a xed pin 28 adapted to the slot. The slot is atsuch an. angle that as the shaft 8 is turned by the handle, the movableportion of the shears will be forced down from the position shown inYFig. 1 to that shown in Fig. 6, making a shearing, as well as a drawingcut. Consequently, any material placed on the base will be quickly andaccurately sheared with comparatively little pressure.

It will be noticed that the teeth 111 of the gear wheel 15 arediscontinued for more than one-half the circumference, the balance ofthe wheel being plain. This fits snugly against the wall 13 of the slot12 and tends to support the movable portion 10 of the cutter, making avery substantial structure and one that can be easily operated. 29 is anabutment secured by a bolt 30 to the base. This abutment overhangs theedge of the base, extending above the xed plate 3, as shown in Fig. it,so that the work to be cut is placed on the base and against theabutment 29, and the movable portion of the cutter cuts toward theabutment and the work is held rigidly during the cutting operation.

I claim:

1. The combination of a base; an overhanging arm projecting from thebase; a shaft; a handle on one end of said shaft; a

gear wheel on the other end of said shaft; a movable portion carrying acutting blade having an elongated opening in which the gear wheel ismounted, one wall of the opening having teeth meshing with the teeth ofthe gear wheel; a guide pin on the overhangin arm, the movable portionof the shears having a slot into which the guide pin extends so that onrotating said shaft the movable shear blade is given a downward shearingand drawing action against the base.

2. The combination in shears; of a base having an arm; an adjustableblade mounted on the base; a shaft mounted in the arm; means forrotating the shaft; a wheel having teeth on a portion of its peripheryand having a disk; a movable portion of the shears mounted on a gearwheel between the disk and the bearing; a cutting blade carried by themovable portion of the shears; and means for guiding one end of themovable portion so that on the rotation of the shaft it will Vhave ashearing and drawing movement.

3. The combination in a shears, of a base; a blade thereon; means foradjusting said blade; an abutment on the base; an overhanging armprojecting from the base and having a bearing; a shaft mounted in thebearing; a handle secured to one end of the shaft; a gear wheel mountedon the other end of the shaft and having teeth on a portion of itscircumference, the movable portion of the shears having a slot in whichthe gear is mounted; rack teeth on one wall of the slot with which theteeth of the gear engage; a flan'e on the gear, the movable portion ofthe sliears being mounted between the flange and the arm and having aslot with an angular extension; a pin on the arm eX- tcnding into theslot; a blade carried by the movable portion of the shears, the partsbeing so arranged that when the handle is turned the shears have adownward shearing and drawing action against the fixed blade of the baseand the abutment.

et. The combination of a base having an arm; an adjustable cutttingblade mounted 0n the base; a bearing on the arm; a shaft mounted in thebearing; a handle secured to one end of the'shaft; a gear wheel securedto the other end of the shaft and having a ange; teeth on a portionofthe gear wheel; a movable portion of the shears mounted between theflange and the arm and having an elongated opening in which the gearwheel is mounted, the teeth on the lower wall of the opening meshingwith the teeth of the gear wheel; an angular slot in the movable portionof the shears at the rear of the elongated opening; a pinprojectingjfrom the arm and extending into the slot, the pin being soarranged that when the movable portion of the shears is raised the pinis in the angular portion of the slot and when the shear is depressedthe pin is in the main portion of the slot, the blade of the shearsextending at an angle past the blade of the base.

5. The combination in a shears, of a base; an abutment on the base; anadjustable blade secured to the side of the base; an overhanging armhaving a bearing; a transverse shaft mounted in the bearing; ahandle onone end of the shaft, the bearing having a cylindrical enlargement; agear wheel secured to the shaft and having an enlarged flangecorresponding to the enlargement on the arm; teeth on a portion of thegear Wheel, the movable portion of the shears having an elongatedopening in which the gear wheel is mounted, said portion being locatedbetween the enlargement of the bearing and the flange of the gear wheel;teeth on the lower wall or the opening, the upper wall being plain, theextension of the movable portion having an angular slot therein; a pinon the arm eX- tending into the slot, said portion having a cuttingblade; and a friction washer mounted between the handle and the bearing;and an adjustable screw adapted to an opening in the shaft and bearingagainst the hub of the handle.

THOMAS J. FEGLEY. GEORGE O. LEOPOLD.

